Air-moistener and dust-collectob



J. S. NELSON.

AIR MOISTENER AND DUST COLLECTOR.

APPLICATION FILED MAY3. I911.

Patented Juno 3, 1919.

Q mi-f 1 1 000 C] Hon n1 0 Sioux Falls, in the county of pnrrn s'raans rare a anion.

JOHN S. NELSON, OF SIOUX FALLS, SOUTH DAKOTA.

AIR-MOISTENER AND DUST-COLLECTOR.

Specification of Letters Patent.

Patented June 3, 1919.

Application filed May 3, 1917. Serial No. 166,213.

and State of South Dakota, have invented certain new and useful Improvements in Air-Moisteners and Dust-Collectors; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates generally to furnaces, but more particularly. to certain new and useful improvements in air moisteners and dust collectors adapted to be connected to the cold air pipe of a hot air furnace.

One object of the invention is to provide means for moistening cold air as it is fed into a hot air furnace, said means requiring practically no attention, and being of such construction that it will not get out of order.

Another object of the invention is to provide means which will serve to collect all particles of dust contained in the air as it is being supplied to a hot air furnace in addition to moistenlng such air.

A further object of the invention is to generally improve upon devices of this class by the provision of an extremely simple. strong, durable and inexpensve construction, one which will be efiicient and reliable in operation. and well adapted to the purpose for which it is designed.

With these and other objects in view, the invention consists of certain novel features of construction, and the combination and arran ement of parts as will be hereinafter fully escribed and claimed.

In the accompanying drawing forming a part of the application, in which similar reference characters designate like parts throughout the several views: v

Figure 1 is a side elevation of an ordinary hot air furnace, showing a, device constructed in accordance with this invention attached to the cold air pipethereof;

Fig. 2 is an enlarged front elevation of the device; i

,Fig. 3 is a central vertical sectional view of the same; and

. Fig. 4 is a horizontal sectional view of the device taken on the plane indicated by the line H of Fig. 3.

Ref erringfiiore particularly to the drawing, the reference numeral l designates a casing which is rectangular or cubical in configuration, and which is preferably constructed of sheet metal. Fixed to the top '2 and bottom 3 of the casing in any suitable manner and extending centrally from the same are nipples 4 and 5 respectively by which the casing is attached to and sup ported by the cold air pipe (1 of the hot air furnace A.

One side, or infect, the front of the casing is provided with a rectangular-shaped.

opening 6, and extending transversely through the casing from this side to the opposite s1de thereof and secured to these sides is a pair of right-angular tray supporting guides 7. Corresponding ends of the guides 7 are disposed adjacent the lower corners of the opening 6 to support a tray or pan 8 which extends and slides through said opening. As shown, the guides 7 are spaced from the two other opposite sides of the casing 1 and also spaced from the bottom 3 of the latter.

Extending transversely through the easing and disposed between'and secured to the first two mentioned sides of the casing, is a pair of downwardly converging deflecting plates 9. These plates 9 are disposed beneath the inlet nipple 4, and above the tray 8 so as to direct the air entering said nipple t through the. pipe a into the tray.

In using the device, the tray or pan 8 is filled with water and disposed in place in the casing. As the air passes through the casing it will be directed by the plates 9 to the central portion of the tray. It will then pass along the surface of the water to the longer sides of the water pan and around these longer sides to the outlet nipple 5. The particles of dust which are carried 1) the air as it is drawn from the pip'e a wil be collected in the tray or water pan, and may be disposed of from time to time. Should the water in the tray evaporate, .it may readily be replaced by withdrawing the tray either entirely or only a slight amount.

It is .to be observed that the lower edges of the baffle plates 9 are spaced apart a distance considerably less than the "diameter of the inlet 4, and that said edges are disposed in close proximity with the water in the pan 8. This relation of parts is highly important, as the current of air passing between said edges is fiattened and then split intostwo. thinner currents which pass beneath said plates and along the surface at the water in the pan. These two currents are practically films and it will be seen that by passing these thin films along the surface of the Water, they will gather a great amount of moisture therefrom, as well as de-' device will be readily understood. It will be seen that the objects of the invention have been effectively carried out, as an extremely simple, and yet strong and durable combined air moistener and dust collector has been provided. I

As various changes in form, proportion and in the minor details of construction may be resorted to without departing from the spirit of the invention, it is to be understood that I do not Wish to be limited to the precise construction herein shown and described.

I claim:

An air moiste'ning and cleansing device comprising a casin having an inlet opening at the center 0 the top and having any outlet opening at the center of its bottom,

a water pan supported in said casing and extending from one to the other of two opdisposed above and adjacentto the center of said water pan and the distance between said edges being lessvthan the diameter of the inlet opening, whereby the air current is flattened prior to its contact with the water in said Water pan, said flattened current dividing into two thin flat currents and passing beneath said plates along the surface of the water, whereby to absorb maxi- .mum moisture from the latter and to deposit all dust and the like therein.

' In testimony whereof I have hereunto set my hand in the presence of two subscribing w1tnesse s. I

JOHN s. NELSON.

Witnesses:

G. MERRIAM, JoHN WESTMORE. 

